Post-COVID-19 Outpatient Care and Biomarkers

The aims of this case-control, non-randomized study including patients with post-COVID-19 persisting symptoms are 1) to establish the large blood biobank, 2) to examine levels of circulating inflammatory biomarkers and different classes of non-coding RNAs (ncRNA), such as selected circRNAs and miRNAs, in plasma and serum samples collected from patients with post- COVID-19, 3) to test the levels of cfDNA in plasma and serum, 4) to define correlation between ncRNAs and cf-DNA with persistent clinical symptoms, and type of symptoms, and 5) to investigate diagnostic and prognostic performances of these circulating biomarkers. Study design. This is a prospective registry including biobank.